docs: def find_endurance_tier_iops_per_gb(volume):
      """Find the tier for the given endurance volume (IOPS per GB)
  
      :param volume: The volume for which the tier level is desired
      :return: Returns a float value indicating the IOPS per GB for the volume
      """
      tier = volume['storageTierLevel']
      iops_per_gb = 0.25
  
      if tier == "LOW_INTENSITY_TIER":
          iops_per_gb = 0.25
      elif tier == "READHEAVY_TIER":
          iops_per_gb = 2
      elif tier == "WRITEHEAVY_TIER":
          iops_per_gb = 4
      elif tier == "10_IOPS_PER_GB":
          iops_per_gb = 10
      else:
          raise ValueError("Could not find tier IOPS per GB for this volume")
  
      return iops_per_gb